I’M SURE she’ll be furious when she’s older for telling you, but Bonnie is finally dry at night.

I suspect the lateness of the developmental stage (she’s almost four) is down to me. I forgot when you’re supposed to start taking them out of night-nappies.

Everyone always tells you that girls potty train earlier than boys. But I think all of my lot were day-time toilet trained at around two.

However, the night-dryness comes later, and you have to make a decision to stop putting them in nappies at night and waking them to go to the loo instead.

I kept waiting for Bonnie to be dry by herself, while she simply stayed deeply asleep.

It’s really easy to misjudge, what with today’s high-tech pull-up disposables, which barely feel wet even when you’ve poured half a jug of Robinson’s No Added Sugar into them via the funnel of your child.

But eventually I had to wake up to the fact that she needed us to ‘night-train’ her – even if she stays fast asleep.

She’s a deep sleeper and complains when she’s woken, but after several months and less than a handful of accidents, she’s started getting up automatically when I come in at around 11.30pm, and even puts herself on a potty in her room.

While doctors don’t consider a child to have a medical bed-wetting problem unless they are over six, if you have a three-year old who has been day-time dry for a while, then take the plunge. Fit waterproof sheets, layer with an old towel, be prepared for accidents, and leave the nappy off.

You might find yourself having to sponge down an irritable child and change wet pajamas and bedding a few times at first. But they quickly adjust to the routine , and it’s better to get them in the habit sooner rather than later.

You’ll need to make sure they go before bed, and lift them to the loo or potty every night around the same time.

It’s preferably to make them walk to the loo themselves to imprint a habit, but even when being ‘walked’ Bonnie often seems asleep.

Of course, it’s not plain sailing. Even after weeks of being dry, we have the odd accident.

If accidents are happening every night for more than a fortnight, it’s best to pop them back into pull-ups for a month or two and try again later. Stay positive, laid-back and supportive, because getting cross will only make matters worse.